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 Kinemaatika – mehaanika osa, mis
  kirjeldab kehade liikumist ruumis, jättes
  kõrvale liikumise tekke põhjuse.
 Dünaamika – mehaanika osa, mis uurib
  liikumise tekkimise ja muutumise
  põhjuseid.
 Staatika – mehaanika osa, mis uurib
  kehade tasakaalutingimusi.

                                          [1]
 Mehaanika on füüsika osa, mis uurib
  kehade liikumist ja paigalseisu ruumis
  ning liikumise muutust mitmesuguste
  mõjude tagajärjel. Mehaanika
  põhiülesandeks on keha asukoha
  määramine ruumis suvalisel ajahetkel.
 Kui keha asukoht muutub ruumis aja
  jooksul, siis nimetatakse seda
  mehaaniliseks liikumiseks.
 Punktmassiks nimetatakse keha, mille
  mõõtmeid võib jätta arvestamata, kuna
  vahemaad on keha mõõtmetega
  võrreldes liiga väiksed.               [1]
 Trajektooriks nimetatakse joont, mida
  mööda keha liigub.
 Teepikkuse saame, kui mõõdame keha
  alg- ja lõppasukoha piki trajektoori, aga
  kui mõõdame otselennult ühest punktist
  teise trajektoori arvestamata, saame
  vektori, mida nimetatakse ka nihkeks.


                                         [1]
• Nihe                  Teepikkus

Valem    s x x0          x       Pikkus
          s – nihe               saadakse
          x – lõppkoordinaat     mõõtmisel
          x 0 - algkoordinaat


Ühik : 1 meeter
(1m)
Tähis : s                                     [2]
   Liikumisi saab liigitada trajektoori kuju
    järgi. Sirge trajektoori korral on liikumine
    sirgjooneline, kui aga trajektoor pole
    sirge, siis on liikumine kõverjooneline.




                                              [2]
   Eristada saab ka ühtlast ja mitteühtlast
    liikumist. Ühtlase liikumise korral muutub
    võrdsetes ajavahemikes keha asukoht
    samapalju.




                                            [2]
 Liikumine, mille puhul keha kiirus muutub
  mistahes võrdsetes ajavahemikes võrdsete
  suuruste võrra.
 Hetkkiirus – kiirus antud ajahetkel.
 Keskmine kiirus – ajaühikus sooritatud
  keskmine nihe.
 Kiirendus – kiiruse muutumine ajaühikus.
 Liikumine on ühtlaselt kiirenev, kui kiirendus ja
  kiirus on samasuunalised, aeglustuv aga, kui
  kiirendus ja kiirus on vastassuunalised      [2]
1.   Peil, I. (2012). Mehaanika
2.   Trunin, Karu (2009). Teadmiste raudvara II
     osa
Mehaanika

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Mehaanika

  • 1.
  • 2.  Kinemaatika – mehaanika osa, mis kirjeldab kehade liikumist ruumis, jättes kõrvale liikumise tekke põhjuse.  Dünaamika – mehaanika osa, mis uurib liikumise tekkimise ja muutumise põhjuseid.  Staatika – mehaanika osa, mis uurib kehade tasakaalutingimusi. [1]
  • 3.  Mehaanika on füüsika osa, mis uurib kehade liikumist ja paigalseisu ruumis ning liikumise muutust mitmesuguste mõjude tagajärjel. Mehaanika põhiülesandeks on keha asukoha määramine ruumis suvalisel ajahetkel.  Kui keha asukoht muutub ruumis aja jooksul, siis nimetatakse seda mehaaniliseks liikumiseks.  Punktmassiks nimetatakse keha, mille mõõtmeid võib jätta arvestamata, kuna vahemaad on keha mõõtmetega võrreldes liiga väiksed. [1]
  • 4.  Trajektooriks nimetatakse joont, mida mööda keha liigub.  Teepikkuse saame, kui mõõdame keha alg- ja lõppasukoha piki trajektoori, aga kui mõõdame otselennult ühest punktist teise trajektoori arvestamata, saame vektori, mida nimetatakse ka nihkeks. [1]
  • 5. • Nihe  Teepikkus Valem s x x0 x Pikkus s – nihe saadakse x – lõppkoordinaat mõõtmisel x 0 - algkoordinaat Ühik : 1 meeter (1m) Tähis : s [2]
  • 6. Liikumisi saab liigitada trajektoori kuju järgi. Sirge trajektoori korral on liikumine sirgjooneline, kui aga trajektoor pole sirge, siis on liikumine kõverjooneline. [2]
  • 7. Eristada saab ka ühtlast ja mitteühtlast liikumist. Ühtlase liikumise korral muutub võrdsetes ajavahemikes keha asukoht samapalju. [2]
  • 8.  Liikumine, mille puhul keha kiirus muutub mistahes võrdsetes ajavahemikes võrdsete suuruste võrra.  Hetkkiirus – kiirus antud ajahetkel.  Keskmine kiirus – ajaühikus sooritatud keskmine nihe.  Kiirendus – kiiruse muutumine ajaühikus.  Liikumine on ühtlaselt kiirenev, kui kiirendus ja kiirus on samasuunalised, aeglustuv aga, kui kiirendus ja kiirus on vastassuunalised [2]
  • 9. 1. Peil, I. (2012). Mehaanika 2. Trunin, Karu (2009). Teadmiste raudvara II osa